GW&K Investment Management, LLC

Position in MLM — Martin Marietta Materials Inc

CIK 1082917 BOSTON, MA

Position in MLM

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$20,232,366

-$815,298 QoQ

Shares Held

35,083

-1.9% QoQ

Ownership

0.058%

of shares outstanding

% of Portfolio

0.16%

of 13F equity value

Holder Rank

#140

of 1,072 holders

Holding Since

Mar 2022

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Jun 30, 2026

GW&K Investment Management, LLC holds $97,981,568 across 6 Building Materials names. MLM ranks #2 (20.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EXP	Eagle Materials Inc	276,835	$62,287,875
2	MLM	Martin Marietta Materials Inc This page	35,083	$20,232,366
3	KNF	Knife River Corp	182,766	$15,288,375
4	CRH	Crh Public Ltd Co	931	$99,617
5	VMC	Vulcan Materials CO	247	$72,867
6	TGLS	Tecnoglass Holdings Inc.	10	$468

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$20,232,366	35,083	-1.9%	Shares	Sole	2026-08-12
2026-03-31	$21,047,664	35,754	-2.5%	Shares	Sole	2026-05-13
2025-12-31	$22,828,583	36,663	+0.1%	Shares	Sole	2026-02-11
2025-09-30	$23,080,853	36,620	-3.9%	Shares	Sole	2025-11-12
2025-06-30	$20,910,435	38,091	-2.4%	Shares	Sole	2025-08-11
2025-03-31	$18,664,760	39,037	+8.8%	Shares	Sole	2025-05-05
2024-12-31	$18,539,251	35,894	+27.8%	Shares	Sole	2025-02-05
2024-09-30	$15,116,751	28,085	+32941.2%	Shares	Sole	2024-11-07
2024-06-30	$46,053	85	+2.4%	Shares	Sole	2024-08-12
2024-03-31	$50,957	83	+167.7%	Shares	Sole	2024-05-08
2023-12-31	$15,466	31	0.0%	Shares	Sole	2024-02-09
2023-09-30	$12,724	31	+1450.0%	Shares	Sole	2023-11-09
2023-06-30	$923	2	0.0%	Shares	Sole	2023-08-09
2022-06-30	$598	2	-84.6%	Shares	Sole	2022-08-09
2022-03-31	$5,003	13	—	Shares	Sole	2022-05-09
No filing history on record for this holder in this stock.